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util: report write errors in sysfs_write

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Marcel Alexandru Nitan
2023-01-31 21:22:18 +02:00
parent 28c95af44b
commit 5833dd5dd9
1 changed files with 10 additions and 2 deletions
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src/util.cpp
+10 -2
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@@ -59,11 +59,19 @@ void sysfs_write(char *path, char *content)
{ {
std::cout << "Write: " << content << " -> " << path << std::endl; std::cout << "Write: " << content << " -> " << path << std::endl;
int fd; int fd;
fd = open(path, O_WRONLY); if (fd = open(path, O_WRONLY) == -1)
write(fd, content, strlen(content)); {
perror("Failed to open sysfs file");
return;
}
if (write(fd, content, strlen(content) == -1))
{
perror("Failed to write sysfs file");
}
close(fd); close(fd);
} }
char *getprop(char *key) char *getprop(char *key)
{ {
std::array<char, 128> buffer; std::array<char, 128> buffer;